Combined latch and lock



' .(No Model.)

E. AR. FERRY.

COMBINED LATCH AND LUCK.

N. PETERS, Pnumlmlmgmpmr. washington, mc

ATTORNEYS.

i UNITED STATES PATENT OFFICE.

EDVIN R.' FERRY, OF NEW. HAVEN, CONNECTICUT.

ooMBlNED LATCH AND LOCK.

SPECIFICATION forming part of Letters Patent No. 347,100, datedAugustlO, 1886.

Application filed November 13, 1895. Serial No. 182,717. (No model.)

To all whom it may concern:

Be it known. that I, EDWIN It. FERRY, of New Haven, in the county of NewHaven and State of Connecticut, have invented certain Vnew and usefulImprovements in Combined Latch and Lock, of which thefollowing is afull, clear, and exact description.

This invention consists in a combined latch and `lock constructed andarranged so as to be operated from either side of a door, as will behereinafter described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l shows in sectional elevation the simplest form of my new andimproved lock applied to a door with a knob-spindle to operate it. ingthe lock applied to an outside door, with means for operating it. Fig. 3is a sectional plan view on the line fr m of Fig. 2, and Fig. 4 is adetailed sectional elevation taken on the line y y of Fig. 2.

A represents the bolt, and B the tumbler. These are placed in a lockcase or cavity, 4C. The tumbler B is pivoted above the bolt A upon thepin a, andis connected with the bolt by a projection or arm, b, thatenters'a recess, a', in the bolt., or stands between two studs formed onthe bolt, so that when the tumbler Bis raised by a key-spindle, D, orother means to the position shown in dotted lines in Fig.l it willwithdraw the bolt A. The tumbler Bis counterweighted by an enlargementor weight, b', so that when the spindle-key or other means used forlifting the tumbler is released the tumbler will drop by gravity to itsoriginal position-that shown in full lines in Fig. l-and cause arm b tothrow out the bolt A.

The spindle D, used in the form of lock shown in Fig. 1, is a plainspindle having a lug or can]7 c, formed upon it, which acts in the spacebetween the arm Z) and weight b, so that when the spindle is turned thelug or cam c will lift the tumbler with the result above described.

In the form of lock shown in Fig. 2 I use a stationary spindle, E,having a cavity, d, and a side opening, d', made inline with the cavityof the case C. This spindle I use upon the Fig.l2 is a sectionalelevation show' inside of the door F, and I form it with a knob,'E, foropening and closing the door. In theeavitycl of the spindle E is pivotedupon pin d2 the thumb piece or lever G, the inner end, e, of which isupturned and'tern'iinates in or in line with the opening d in thespindle E. `The .outerend, e', of the lever G terminates outside of Vandabove the spindle E, so that it may be easily pressed down with thethumb, for causing the inner end, c, ot' lever G to lift the tumbler Bon its pivot and withdraw the bolt A. When the outer end ol' the lever Gis depressed, the inner end thereof passes up thro ugh the opening`d,that connects the cavity (l of .the spindle E with the ease C, and asthe tumbler B spans the spindle over the cavity d the inner end of thelever G strikes it, and 'lifts the tumbler and withdraws the bolt. Vhenpressure is removed from the outer end of the lever G, the tumbler willdrop of its own Weight to its original position and force the bolt Aoutward again.

For operating the bolt A and tumbler B from the outside ofthe door Fwithout a key,

`I provide the door with the lever II, which is pivoted upon the pin4 fin the support or bracket I, and passes through slots q g in the doorand slots 7L h in the lock-case and the slot j in the bolt A, as shownclearlyin Figs. 2 and 3, so that by pressing the outer hooked end of thelever H in the direction of the arrow the lever will -swing in the slotsand withdraw the bolt.` The inward movement of the bolt will act uponthe tumbler B and turn it on its pivot, elevating its weightedend,which,when the lever H is released,will return the bolt and thelever to their original positions.

Upon the inside of the doorAF, I pivot the locking device or button J,which is adapted to engage with the inner end of the lever I-I forlocking it forward, so that the bolt A cannot be operated from theoutside by the lever H. When the lever H is thus locked the bolt A maybe operated by the lever G, or by a key from the outside, as nextdescribed.

The handle K, secured upon the outside, is in this instance formed witha chamber, k, that incloses the outer end of the hollow spindle E. Inthe chamber 7o is placed the secondary key Z,which is beveled at itsinner end, and serves when forced inward in the hollow spindle E to passunder and lift the inner end of the lever G, and thus cause end c ot'lever G to lift the tumbler l, and withdraw the bolt A. The key Z may beused as the only and as a separate detached key. ifdesired, in whichcase the chamber 7s would be dispensed with, and in its place would bel'ormed on the handle i( a ilat plate having a key-hole formed in it tocoincide with the openingr in the outer end ol' the spindle E. The keyZ, when used as a secondary key, is pivoted 1o the'lower edge or sideoi`the barrel m, which is iournaled atits ends in the side pieces of theehamberk. The key Z is attached to the barrel m below the center, sothat when the barrel is turned the key will be moved longitudinally. Thebarrel m1 may be turned by a pocket-key, L, passed into the longitudinalslot m', made in the barrel, and forlocking the barrel m when the key Lis removed, and so that a complicated key will be required for openingthe doei-,l pivot in the chamber k on the rod n the two side dogs, o o,and the ccntrai dog, o', each being provided with downwardly-projcetinglips o", that are adapted to drop in to the slot in', as shown in Fig.2, and thus prevent the barrel in, from being turned except by a keythat,when inserted, will lift the dogs o o out of the slot mf.

Having' thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A combined latch and lock constructed,

arranged, and operating substantially as herein described and shown,consistingY of a suitable case, C, tumbler '13, bolt A,havin;; ahorizontal slot,j, and spindle E, in combination with the lever H andlocking device J, as and for the purpose set forth.

2. In a combined latch and leek construct-- ed, arranged, andolrierating substantially as herein described and shown, a suitablecase, C, hollow spiudleE, tumbler B, and latch-bolt A, in combinationwith the lever G, to operate the latch-bolt A from the inside of thedoor, and the key Z,to operate thelcver (i to unlock the doei' from theoutside by an independent key, L, as set forth.

3. A combined latch and lock constructed, arranged, and operati ng;substantially as herein set forth and shown, consisting of a suitable kcase, C, spindle E, tumbler l), latch-bolt A ,and lever G, incombination with the handle K and mechanism therein for unlocking thelatchbolt Alroni the outside of the door with a dctachable key, asdescribed.

4. As anewartiele of immui'aeture, the handie K, formed with the chamber7.: at one cud to receive lock mechanism, substantially as described.

EDWIN 1t. FERRY.

XVitiiesscs:

EDGAR TAJJE, EDWD. M. CLARK.

